== sanity test 413k: QoS mkdir exclude prefixes ========== 17:26:02 (1760131562)
lmv.lustre-clilmv-ffff9e5b071e8000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9e5b071e8000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9e5b071e8000.qos_exclude_prefixes=_temporary